Teen Super Leakproof® Sleepover Short
30% off
Teen Super Leakproof® Sleepover Short
30% off
Knix period underwear and pads are now sales tax-free in Canada.* We celebrate improvements to the accessibility and affordability of essential period care products.
Our most absorbent nighttime underwear features a longer gusset (designed to fight period stains and leaks while you snooze!) and an ultra-comfy, bum-covering style. Made with our patented, 3-layer leakproof technology built in that absorbs the same as about 5.5 super tampons or 2.5 regular pads.
🇨🇦 Free standard shipping over $100.
Free expedited shipping over $150.
(after discounts, before shipping + taxes) All items ship from within Canada.
EXCHANGE ONLY Items marked as "Sale" are exchange only. For items with a 20% or more discount you may exchange for another item or store credit. No refunds.
Kt by Knix for Teens Underwear FAQs
Kt by Knix is designed for smaller and growing bodies to fit teens. Kt Period Underwear are available in teen sizes with smaller leg openings.
Super Absorbency
Absorbs 9–12 tsp (45–60 ml) of blood—that’s about 9–12 regular tampons or pads! Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.
High Absorbency
Absorbs 4–8 tsp (20–40 ml) of blood, or the equivalent of 4–8 tampons or pads. These are perfect for heavy flow days.
Medium Absorbency
Absorbs up to 3 tsp (15 ml), or about 3 tampons or pads worth of blood. Ideal for light to medium flow days or as backup to tampons or period cups.
All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in.
First Layer: Wicks away sweat and moisture while neutralizing odors to keep your teen fresh all day long.
Second Layer: A super thin, highly absorbent liner that holds the power of 3–20 tampons or pads.
Third Layer: A secure, liquid-resistant outer layer keeps leaks from happening.
The short answer: nope! Depending on the absorbency level of the period underwear and the heaviness of your teens flow, your teen can wear our period undies on their own or as a backup to tampons or menstrual cups. They can wear our High and Super absorbency underwear alone and be totally protected, while our Medium absorbency underwear can be worn alone on lighter days or as backup on heavier days.
- Laura T.Verified Buyer3 minutes agoRated 5 out of 5 starsExcellent product
Excellent absorption and comfort for heavier flow days or nights. Love knix!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Kelly T.Verified Buyer1 week agoRated 5 out of 5 starsAmazing
These are just great. Great coverage and very comfortable according to my daughter. True to hip/waist measurements (I didn’t go by pant size).
Was this helpful? - Amanda T.Verified Buyer1 week agoRated 5 out of 5 starsSleepshorts
My daughter will only sleep in these fantastic
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